Valve



S. J. THIBODEAUX AND H. L. RAULERSON.

VALVE.

APPLICATION FILED SEPT. 4. I920.

1,43%26'7, 1 Patented Oct. 31,1922

WITN SS:

Patented @ct. 31, 1922.

entree stares PATENT evince.

STANLEY J.

VALVE.

Application filed September 4, 1920. Serial'No. 408,233.

T 0 all whom it may concern:

Be it known that we, STANLEY J. THIBO- DEAUX and HARMON L. RAULERsoN, citizens of the United States of America, residing at Jacksonville, in the county of Duval and State of Florida, have invented new and useful Improvements in Valves, of which the following is a specification.

Our present invention has reference to a combined feed, check and stop valve designed for use between a pump or injector and a boiler, and has among its objects to provide an extremely simple, cheap and effective device of this character in which the valve is at all times retained properly seated in the body member therefor, and in which the check valve is carried by the core of the main valve and may be inspected, removed or adjusted without disconnecting the main valve from its attachments.

Other objects and advantages will present themselves as the nature of the invention is better understood, reference being had to the drawings accompanying and forming part of this application, and in which satisfactory embodiments of the improvement reduced to practice are illustrated.

In the drawings Figure 1 is an elevation of the valve.

Figure 2 is a central longitudinal sectional view therethrough, and

Figure 3 is a cross sectional view.

Referring more particularly to the drawings we have illustrated a valve which is adapted for use for a wide variety of purposes but which is primarily devised for connection between the pump discharge and boiler of a locomotive.

The inverted hollow conical body is indicated by the numeral 40, the plug by the numeral 41. The plug has both of its ends closed and is provided with a transverse artition 42 having a threaded opening therethrough for the reception of the threaded seat 43 for the check and control valve 44. The plug 41 has a port 45 that communicates with the flanged port 46 of the body that is conected with the pump and with a port 47 that communicates with the flanged port 48 of the body that is connected with the boiler. The adjusting collar 49 which is on the threaded stem 50 ot the plug contacts directly with the closed end of the body 40, being held in such engagement by a jam nut 51.

The top of the plug 41 has a central opening 52 therethrough in which is seated the cup-shaped upper end 53 of a stem 54 for the valve 44.

The bonnet tor the body is indicated by the numeral 55, and is screwed on the said body. Screwed through the bonnet 55 is a threaded stem 57. The threads of this stem are engaged by a nut 58 and a lock nut 59. The stem is provided with a head 60 whereby the same may be adjusted, and by regulating the stem with respect to the cup-shaped upper or outer portion 53 of the valve stem 54, the movement of the valve on its seat 43 may be properly regulated or the said valve may be retained seated.

It will be obvious that by turning the plug so as to bring the ports thereof out of register with the ports in the body, that the bonnet may be removed so that the interior of the body may be inspected without disconecting the valve from the pump or boiler. By removing the bonnet the check valve and its seat may be removed for grinding or replacement when disabled. It will be further noted that by providing the widened open end of the valve body with the cap or bonnet, the upper chamber in the hollow core and the upper portion of the body provide a chest for the live steam from the boiler, the expansion of the said steam in the said chest having a tendency to force the hollow conical core downwardly in the body, thus positively holding the core in proper frictional engagement with the bore of the body, and likewise more eifectively holding the check valve seated.

Having thus described the invention, what I claim is A device of the character described comprising an inverted :trusto-conical shell having its upper end open and its lower end closed except for a relatively small opening, flanged nipples extending laterally in opposite directions from the upper and lower portions of said shell, a bonnetsecured upon and closing the upper end of the shell and having a central threaded opening, a rotary plug member of hollow formation conformingly engaging within said shell and provided at its lower end with a stem rotatably passing through the opening in the lower closed end of the shell. said plug member being formed intermediate its ends with a transverse partition having a hole and being formed above and below said partition with ports registering with said nipples, a

valve seat screwed into the hole in said partition, a valve member normally closing said seat and having a stem extending upwardly andterminating in an enlarged portion extending through an opening in the upper end of the plug member, the upper end of the 10 plug member being provided with a plurality of perforations, and a threaded adjusting member screwed through the central hole in the bonnet and engageable with said enlarged portion. 7

In testimony whereof we aflix our signatures.

STANLEY J. THIBODEAUX. HARMON'L. RAULERSON, 

